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From: Leon Romanovsky <leon@kernel.org>
To: Kees Cook <keescook@chromium.org>
Cc: Doug Ledford <dledford@redhat.com>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org,
	linux-hardening@vger.kernel.org
Subject: Re: [PATCH v2] RDMA/mlx5: Use memset_after() to zero struct mlx5_ib_mr
Date: Wed, 8 Dec 2021 10:51:49 +0200	[thread overview]
Message-ID: <YbByJSkBgLRp5S8V@unreal> (raw)
In-Reply-To: <20211207212022.364703-1-keescook@chromium.org>

On Tue, Dec 07, 2021 at 01:20:22PM -0800, Kees Cook wrote:
> In preparation for FORTIFY_SOURCE performing compile-time and run-time
> field bounds checking for memset(), avoid intentionally writing across
> neighboring fields.
> 
> Use memset_after() to zero the end of struct mlx5_ib_mr that should
> be initialized.
> 
> Signed-off-by: Kees Cook <keescook@chromium.org>
> ---
> v2: rebased, umem moved into the union and is expected to be wiped
>     https://lore.kernel.org/lkml/20211207194525.GL6385@nvidia.com
> ---
>  drivers/infiniband/hw/mlx5/mlx5_ib.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

Thanks,
Acked-by: Leon Romanovsky <leonro@nvidia.com>

  reply	other threads:[~2021-12-08  8:51 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-07 21:20 [PATCH v2] RDMA/mlx5: Use memset_after() to zero struct mlx5_ib_mr Kees Cook
2021-12-08  8:51 ` Leon Romanovsky [this message]
2021-12-14  0:39 ` Gustavo A. R. Silva

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